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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
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<?php
	$d1=new DateTime("2012-10-4");
	$d2=new DateTime("2012-10-1");
	$interval=$d1->diff($d2);
	echo $interval->format('%R%a days');
?>
</body>
</html>